This type introduces a memory cell, a special cell that can process data when data have time gaps (or lags). RNNs can process texts by “keeping in mind” ten previous words, and LSTM networks can process video frame “keeping in mind” something that happened many frames ago. LSTM networks are also widely used for writing and speech recognition.
Herausforderungen der künstlichen Intelligenz - Bericht der interdepartementalen Arbeitsgruppe «Künstliche Intelligenz» an den Bundesrat (Interdepartementale Arbeitsgruppe künstliche Intelligenz) (2019)